{"instruction": "You are an expert in relationship extraction. Please extract relationship triples that match the schema definition from the input. Return an empty list for relationships that do not exist. Please respond in the format of a JSON string.", "schema": ["children", "place of birth", "place of death", "ethnicity of people"], "input": "This week , Phoenix Coach Wayne Gretzky -- Canada 's executive director for the last two Olympics and the World Cup -- said that the Rangers ' Jaromir Jagr should win the Hart Trophy as the league 's most valuable player , and that Niedermayer was the most valuable player in the Western Conference . ''"}
{"children": [], "place of birth": [], "place of death": [], "ethnicity of people": []}